You should not delete these items they sound like they could be core parts of the OS that you have no business deleting.
If you could delete them (the OS could prevent that mistake) you may find the Mac may not boot.
The third party jobs (Google, Adobe…) probably help the installed apps stay up to date - this is crucial for security.
If you have an issue, please explain the symptoms.
If you want to show what is running on your Mac post the output of Etrecheck…
http://etresoft.com/
It will list third party background jobs & some Apple jobs too, check it for personal info if you post it's output here, it does try to remove personal info.